CVE catalog

CVE-2018-18312

perl: CVE-2018-18312

Severity: High · CVSS 7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Published: Nov 29, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 12.77% · Oct 25, 2026

Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	perl	sid	`5.42.3-1`	fixed
Debian	perl	forky	`5.42.3-1`	fixed
Debian	perl	trixie	`5.40.1-6+deb13u1`	fixed
Debian	perl	bookworm	`5.36.0-7+deb12u3`	fixed
Debian	perl	bookworm-security	`5.36.0-7+deb12u4`	fixed
Alpine	perl	3.10	`5.26.3-r0`	fixed
Alpine	perl	3.11	`5.26.3-r0`	fixed
Alpine	perl	3.12	`5.26.3-r0`	fixed
Alpine	perl	3.13	`5.26.3-r0`	fixed
Alpine	perl	3.14	`5.26.3-r0`	fixed
Alpine	perl	3.15	`5.26.3-r0`	fixed
Alpine	perl	3.16	`5.26.3-r0`	fixed
Alpine	perl	3.17	`5.26.3-r0`	fixed
Alpine	perl	3.18	`5.26.3-r0`	fixed
Alpine	perl	3.19	`5.26.3-r0`	fixed
Alpine	perl	3.20	`5.26.3-r0`	fixed
Alpine	perl	3.21	`5.26.3-r0`	fixed
Alpine	perl	3.22	`5.26.3-r0`	fixed
Alpine	perl	3.23	`5.26.3-r0`	fixed
Alpine	perl	3.24	`5.26.3-r0`	fixed
Alpine	perl	3.6	`5.24.4-r2`	fixed
Alpine	perl	3.7	`5.26.3-r0`	fixed
Alpine	perl	3.8	`5.26.3-r0`	fixed
Alpine	perl	3.9	`5.26.3-r0`	fixed
Ubuntu	perl	16.04	`5.20.2-6`	vulnerable
Ubuntu	perl	16.04	`5.22.1-3`	vulnerable
Ubuntu	perl	16.04	`5.22.1-4`	vulnerable
Ubuntu	perl	16.04	`5.22.1-5`	vulnerable
Ubuntu	perl	16.04	`5.22.1-7`	vulnerable
Ubuntu	perl	16.04	`5.22.1-8`	vulnerable
Ubuntu	perl	16.04	`5.22.1-9`	vulnerable
Ubuntu	perl	16.04	`5.22.1-9ubuntu0.2`	vulnerable
Ubuntu	perl	16.04	`5.22.1-9ubuntu0.3`	vulnerable
Ubuntu	perl	16.04	`5.22.1-9ubuntu0.5`	vulnerable
Ubuntu	perl	16.04	`5.22.1-9ubuntu0.6`	fixed
Ubuntu	perl	18.04	`5.26.0-8ubuntu1`	vulnerable
Ubuntu	perl	18.04	`5.26.1-2ubuntu1`	vulnerable
Ubuntu	perl	18.04	`5.26.1-3`	vulnerable
Ubuntu	perl	18.04	`5.26.1-4`	vulnerable
Ubuntu	perl	18.04	`5.26.1-4build1`	vulnerable
Ubuntu	perl	18.04	`5.26.1-5`	vulnerable
Ubuntu	perl	18.04	`5.26.1-6`	vulnerable
Ubuntu	perl	18.04	`5.26.1-6ubuntu0.1`	vulnerable
Ubuntu	perl	18.04	`5.26.1-6ubuntu0.2`	vulnerable
Ubuntu	perl	18.04	`5.26.1-6ubuntu0.3`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	perl	source	sid	`5.28.1-1`	not yet assigned	Not reported	Not reported
Debian	perl	source	forky	`5.28.1-1`	not yet assigned	Not reported	Not reported
Debian	perl	source	trixie	`5.28.1-1`	not yet assigned	Not reported	Not reported
Debian	perl	source	bookworm	`5.28.1-1`	not yet assigned	Not reported	Not reported
Alpine	perl	apk	3.10	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.11	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.12	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.13	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.14	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.15	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.16	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.17	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.18	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.19	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.20	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.21	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.22	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.23	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.24	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.6	`5.24.4-r2`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.7	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.8	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Alpine	perl	apk	3.9	`5.26.3-r0`	Not reported	ALPINE-CVE-2018-18312	Not reported
Ubuntu	perl	deb	16.04	`5.22.1-9ubuntu0.6`	Not reported	UBUNTU-CVE-2018-18312	Not reported
Ubuntu	perl	deb	18.04	`5.26.1-6ubuntu0.3`	Not reported	UBUNTU-CVE-2018-18312	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libperl5.36]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · amd64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · arm64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[libperl-dev]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · amd64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · arm64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[perl]Fixed
Details (4)
- 5.36.0-7+deb12u3 · amd64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · arm64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[perl-base]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · amd64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · arm64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[perl-debug]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · amd64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · arm64 · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[perl-doc]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · all · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · all · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · all · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · all · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
[perl-modules-5.36]Fixed
Source package: [perl]
Details (4)
- 5.36.0-7+deb12u3 · all · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u3 · all · bookworm
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · all · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12
- 5.36.0-7+deb12u2 · all · bookworm-security
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · bookworm; dsa · perl · debian · 12

[Debian 13 (Trixie)]

[libperl5.40]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · amd64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · arm64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[libperl-dev]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · amd64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · arm64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[perl]Fixed
Details (2)
- 5.40.1-6 · amd64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · arm64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[perl-base]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · amd64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · arm64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[perl-debug]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · amd64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · arm64 · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[perl-doc]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · all · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · all · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
[perl-modules-5.40]Fixed
Source package: [perl]
Details (2)
- 5.40.1-6 · all · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13
- 5.40.1-6 · all · trixie
  Fixed · Fixed: 5.28.1-1
  dsa · perl · debian · 13

Observed: Oct 23, 2026, 5:35:28 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]